import router, { constantRoutes, dynamicRoutes } from '@/router'
import { getRouters } from '@/api/menu'
import Layout from '@/layout/index'
import ParentView from '@/components/ParentView'
import LayInnerLink from '@/layout/components/lay-inner-link'

// 匹配views里面所有的.vue文件
const modules = import.meta.glob('./../../views/**/*.vue')
const {hasPermiOr, hasRoleOr} = useAuth()
export const usePermissionStore = defineStore(
        'permission',
        {
            state: () => ({
                routes: [],
                addRoutes: [],
                defaultRoutes: [],
                sidebarRouters: [],
                mixSidebarRoutes: []
            }),
            actions: {
                setRoutes(routes) {
                    this.addRoutes = routes
                    this.routes = constantRoutes.concat(routes)
                },
                setDefaultRoutes(routes) {
                    this.defaultRoutes = constantRoutes.concat(routes)
                },
                setMixRoutes(routes) {
                    this.mixSodebarRoutes = routes
                },
                setSidebarRouters(routes) {
                    this.sidebarRouters = routes
                },
                generateRoutes() {
                    return new Promise(resolve => {
                        // 向后端请求路由数据
                        getRouters().then(res => {
                            const sdata = JSON.parse(JSON.stringify(res.data))
                            const rdata = JSON.parse(JSON.stringify(res.data))
                            const defaultData = JSON.parse(JSON.stringify(res.data))
                            const sidebarRoutes = filterAsyncRouter(sdata)
                            const rewriteRoutes = filterAsyncRouter(rdata, false, true)
                            const defaultRoutes = filterAsyncRouter(defaultData)
                            const asyncRoutes = filterDynamicRoutes(dynamicRoutes)
                            asyncRoutes.forEach(route => { router.addRoute(route) })
                            this.setRoutes(rewriteRoutes)
                            this.setSidebarRouters(constantRoutes.concat(sidebarRoutes))
                            this.setDefaultRoutes(sidebarRoutes)
                            this.setMixRoutes(defaultRoutes)
                            resolve(rewriteRoutes)
                        })
                    })
                }
            }
        })

// 遍历后台传来的路由字符串，转换为组件对象
function filterAsyncRouter(asyncRouterMap, lastRouter = false, type = false) {
    return asyncRouterMap.filter(route => {
        if (type && route.children) {
            route.children = filterChildren(route.children)
        }
        if (route.component) {
            // Layout ParentView 组件特殊处理
            if (route.component === 'Layout') {
                route.component = Layout
            } else if (route.component === 'ParentView') {
                route.component = ParentView
            } else if (route.component === 'InnerLink') {
                route.component = LayInnerLink
            } else {
                route.component = loadView(route.component)
            }
        }
        if (route.children != null && route.children && route.children.length) {
            route.children = filterAsyncRouter(route.children, route, type)
        } else {
            delete route['children']
            delete route['redirect']
        }
        return true
    })
}

function filterChildren(childrenMap, lastRouter = false) {
    var children = []
    childrenMap.forEach((el, index) => {
        if (el.children && el.children.length) {
            if (el.component === 'ParentView' && !lastRouter) {
                el.children.forEach(c => {
                    c.path = el.path + '/' + c.path
                    if (c.children && c.children.length) {
                        children = children.concat(filterChildren(c.children, c))
                        return
                    }
                    children.push(c)
                })
                return
            }
        }
        if (lastRouter) {
            el.path = lastRouter.path + '/' + el.path
            if (el.children && el.children.length) {
                children = children.concat(filterChildren(el.children, el))
                return
            }
        }
        children = children.concat(el)
    })
    return children
}

// 动态路由遍历，验证是否具备权限
export function filterDynamicRoutes(routes) {
    const res = []
    routes.forEach(route => {
        if (route.permissions) {
            if (hasPermiOr(route.permissions)) {
                res.push(route)
            }
        } else if (route.roles) {
            if (hasRoleOr(route.roles)) {
                res.push(route)
            }
        }
    })
    return res
}

export const loadView = (view) => {
    let res;
    for (const path in modules) {
        const dir = path.split('views/')[1].split('.vue')[0];
        if (dir === view) {
            res = () => modules[path]();
        }
    }
    return res;
}
